| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which could [be] [vb pp] to be | 8 |
|
| 2 | which could [be] [vb pp] to be | 8 |
|
| 3 | which could be [vb pp] to [be] | 8 |
|
| 4 | which could [be] [vb pp] to [be] | 8 |
|
